High Power Magnification: Enjoy 8x magnification and 40mm objective lens for crystal-clear viewing during outdoor and indoor activities. FMC Lens & BAK4 Prism: Benefit from full multi-coated lens green membrane and BAK4 porro prism for high light transmittance and eye protection. Convenient Adjustments: Easily adjust with the central wheel, diopter system, and rapid focusing for smooth transitions. Ergonomic Body Design Ultra-popular size, Comfortable for extended viewing. Alloy body covered by rubber armor, Non-slip rubber armor for absorbing shock. Sturdy and durable. Durable and Waterproof Design: These binoculars are waterproof N constructed with robust materials. Its durability ensures they can handle rough conditions, whether you’re caught in the rain during a hike or exploring humid environments. Wide Range of Uses : 8x magnification is great for a variety of uses from birding watching, travel, hunting, climbing, hiking, sports or concerts spectating, outdoor and more Filed Of View(FOV) – 420ft / 1000m